Quarter US dollars 2004-12-31 0 2005-03-31 -11 2005-06-30 0 2005-09-30 50 2005-12-31 158 2006-03-31 182 2006-06-30 41 2006-09-30 179 2006-12-31 65 2007-03-31 16 2007-06-30 42 2007-09-30 10 2007-12-31 30 2008-03-31 292 2008-06-30 14 2008-09-30 20 2008-12-31 23 2009-03-31 -14 2009-06-30 -92 2009-09-30 3 2009-12-31 -18 2010-03-31 -52 2010-06-30 -37 2010-09-30 -36 2010-12-31 -34 2011-03-31 -32 2011-06-30 -58 2011-09-30 -73 2011-12-31 -63 2012-03-31 -82 2012-06-30 -56 2012-09-30 -53 2012-12-31 11 2013-03-31 52 2013-06-30 27 2013-09-30 13 2013-12-31 -26 2014-03-31 -38 2014-06-30 -41 2014-09-30 -19 2014-12-31 -78 2015-03-31 -82 2015-06-30 -38 2015-09-30 14 2015-12-31 -50 2016-03-31 96 2016-06-30 -68 2016-09-30 52 2016-12-31 36 2017-03-31 40 2017-06-30 5 2017-09-30 0 2017-12-31 0 2018-03-31 0 2018-06-30 0 2018-09-30 0 2018-12-31 0 2019-03-31 0 2019-06-30 0 2019-09-30 0 2019-12-31 0 2020-03-31 0 2020-06-30 0 2020-09-30 0 2020-12-31 0 2021-03-31 0 2021-06-30 0 2021-09-30 0 2021-12-31 0 2022-03-31 0 2022-06-30 0 2022-09-30 0 2022-12-31 1 2023-03-31 1 2023-06-30 1 2023-09-30 1